San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
Is It Common For Rats To Bite Humans While They're Sleeping?
There have been many cases reported in which human beings have been bitten by rodents. People tend to be alarmed when seeing a rat, not just for being repulsive but for the notoriety they have. However, some rumors are just myths that are a bit exaggerated.
Any animal tends to behave aggressively if they feel threatened or in a dangerous situation. In the case of rodents, the behavior is the same. Most of the times they want to go unnoticed, but if they feel cornered they can bite in defense to escape.
Can Rats Bite People While They're Asleep?
It is a rare thing that a rat climbs to someone's bed and bites them. Generally, the occasions in which a rodent climbs a piece of furniture has to do with dirtiness. A messy bed with crumbs of food will attract a rodent.
In these situations, the animal does not normally attack the person. However, some rats sometimes bite kids when they sleep. These exceptions happen because these kids are in low hygiene conditions with crumbs of food on their hands and the smell of this food is an open invitation for rats and their instinct for feeding.
Rats And Infections
People that have been bitten by a rat usually say it is a very strong pain. It is known that their teeth can deeply penetrate the skin, whereby it is necessary to act and clean the wound quickly to prevent the spread of diseases that can be caused when their saliva enters in contact with the bloodstream.
Rodents are vectors in the transmission of many diseases due to the bacteria and viruses they carry. A messy and dirty house is sought after by rodents, due to the abundance of areas suitable for nests. For this reason, if you wish to prevent a rodent infestation, you should keep your house clean.
